Got the example result but not failed the test

Question about the task

Under discussion

What does it mean by "The number of spaces, newline characters (\n), or carriage returns (\r) does not affect the result."?

Read from the console the name of a file containing HTML.

Example:
Info about Leela Leela Turanga
Supergirl

The main method's first parameter is a tag name. For example, "span".
Display all tags that match the specified tag.
The order should match their order in the file, each tag on a new line.
The number of spaces, newline characters (\n), or carriage returns (\r) does not affect the result.
The file does not have a CDATA tag. Each opening tag has a separate closing tag, and there are no self-closing tags.
Tags may have nested tags.

Example output:
Leela Turanga Leela Turanga Super girl

Tag templates:
<tag>text1</tag> <tag text2>text1</tag> <tag text2>text1</tag>

text1 and text2 can be empty

Requirements:

The program must read the file name from the console (use BufferedReader).
The BufferedReader used for reading input from the console must be closed after use.
The program must read the file's contents (use FileReader).
The file input stream (FileReader) must be closed.
The program must write to the console all the tags that match the tag specified by the argument passed to the main method.

package com.codegym.task.task19.task1918; /* Introducing tags */ /* Introducing tags */ import java.io.*; import java.util.*; public class Solution { public static void main(String[] args) throws Exception{ BufferedReader rd = new BufferedReader(new InputStreamReader(System.in)); String fileName = rd.readLine(); rd.close(); String tagName = args[0]; BufferedReader reader = new BufferedReader(new FileReader(fileName)); String line = reader.readLine(); String data = ""; while(line != null){ data += line; line = reader.readLine(); } reader.close(); data = data.replaceAll("<" + tagName, "α"); data = data.replaceAll("</" + tagName + ">", "Ω"); // System.out.println(data); // System.out.println(data.indexOf("α")); data = data.substring(data.indexOf("α")); // System.out.println(data); // System.out.println(""); int openCount = 0, endCount = 0; int start = 0; for(int i=0;i<data.length();i++){ if ("α".equals(String.valueOf(data.charAt(i)))) { openCount++; } else if ("Ω".equals(String.valueOf(data.charAt(i)))) { endCount++; } if(openCount == endCount && openCount > 0){ String resultOrg = data.substring(start, i+1); String result = resultOrg.replaceAll("α", "<" + tagName); result = result.replaceAll("Ω", "</" + tagName + ">"); System.out.println(result); int index = resultOrg.indexOf("α", 1); // System.out.println(index); if(index < 0){ openCount = endCount = 0; start = data.indexOf("α", i+1); continue; } else{ data = data.substring(index, i) + data.substring(i+1); i = -1; } } } } }

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Fadi Alsaidi

Level 34 , Carrollton, TX, USA

19 April 2020, 18:33

You need to try this more rigid example posted by a great user. Code GYM gave and easy example, as you already seen a lot of people are getting the correct output. try the below and if you are able to get the correct answer then you should be good to go. Tips: 1- make sure your starting index is the very next open tag every single time . Don't start from the last closed tag unless you use it as a starting point to find the next open tag. 2- make sure you account for nested tags

Fadi Alsaidi

Level 34 , Carrollton, TX, USA

18 April 2020, 17:44

it means if you go through the String character by character don't assume the end of line is the close of an open tag. end of line will be everything before ( \r \n ).